Who called from 4422006232

They called my cell. I called them back on my land line.  Received message:  "..you have dialed is not in service. ..."
I can't block them on my cell, so I assign them a name, then give that name a ringtone that is silent (I recorded silence).

Trying to sell home security system

Thanks to Joey in Annapolis for the low down.  Home security systems indeed!